kopia lustrzana https://github.com/espressif/esp-idf
29 wiersze
1.0 KiB
C
29 wiersze
1.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "ulp_lp_core_memory_shared.h"
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#include "sdkconfig.h"
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#include "soc/soc.h"
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#include "esp_assert.h"
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/* The last CONFIG_ULP_SHARED_MEM bytes of the reserved memory are reserved for a shared cfg struct
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The main cpu app and the ulp binary can share variables automatically through the linkerscript generated from
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esp32ulp_mapgen.py, but this is not available when compiling the ULP library.
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For those special cases, e.g. config settings. We can use this shared area.
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*/
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#define LP_CORE_SHARED_MEM_ADDR (SOC_RTC_DRAM_LOW + CONFIG_ULP_COPROC_RESERVE_MEM - CONFIG_ULP_SHARED_MEM)
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static ulp_lp_core_memory_shared_cfg_t *const s_shared_mem = (ulp_lp_core_memory_shared_cfg_t *)LP_CORE_SHARED_MEM_ADDR;
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ESP_STATIC_ASSERT(CONFIG_ULP_SHARED_MEM == sizeof(ulp_lp_core_memory_shared_cfg_t));
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ulp_lp_core_memory_shared_cfg_t* ulp_lp_core_memory_shared_cfg_get(void)
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{
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return s_shared_mem;
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}
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